Camera.



E. W. ER.

CAMERA.

APPLICATION FILED AUG-16 l9l6.

Patented Oct. 9, 1917.

2 SHEETS-SHEET l.

EDWIN W. TUCKER, 0F NUBTH PRAIRIE, WISCONSIN.

CAMERA.

Specification of Letters Patent. i Patented Oct. 9, 19.17.

Application led August 16, 1916. Serial No. 115,225.

To all 'whom it may concern:

Be it known that I; EDWIN W. Toom, a citizen of the United States,` residing at North Prairie in the county of Waukesha and State of Wisconsin, have invented certain new and useful Improvements in Cameras; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in cameras, and has for its primary object to provide means whereby the shutter of the camera is automatically locked against 0peration subsequent to the initial exposure of each section of the film, thereby preventing double exposure of any one film section.

Another object of this invention is the provision of a shutter lookin device and means associated therewith or automaticall releasing the shutter when the exposed section of the film is wound upon the film receiving spool and a new section thereof presented for exposure behind the exposure opening of the camera.

With these and other objects in view the invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and illustrated in the accompanying drawings, in which:

Figure 1 represents a side elevation of a well known type of camera illustrating the improved shutter locking device applied thereto, l

Fig. 2 represents a fragments. pntal sectional view on the jline Fig. 3 represents a fragmentary vertical sectional view through the side wall of the camera illustratedl in' Fig. 1 showing a portion of the locking mechanism in detail.,

Fig. 4 re resents a transverse sectional view on the ine 4-4 of Fig. 2.

Fig. 5 represents a.v detall sectional view through the rectangular ide frame for one o the pivoted arms o the ylock mechahori- 2 of casing or body of a well known type of camera having the usual pivoted front or bed 11 supporting the bellows supports 12. The shutter casing 13 is secured in the supports 12 and is provided with the usual or any preferred type of actuating device `14,A

which, in the accompanying drawin s, is in the form of a cable release. The orward extremity of the bellows 15 is secured to the shutter easing 13 and the rear portion thereof is secured to the edge of the exposure opening of the casing 10; 'The opposite ends of the casing 10 are rovided with the usual film receiving chambers in which are su ported the film feeding spool 15 and t e Hlm receiving spool 16, the ange ofwhich latter is formed with a projection or cam 17.

One side wall 18 of the camera casing is formed'with a chamber 19'which communieates with the film receiving spool chamber 17 and a lever 20 is pivotally supported at 22 in the chamber 19. The upper Aterminal Vof the'lever 20 is normally retained in engagement with the cam flange 17 of the spool 16 bythe tension of a spring 23 and is adapted to be oscillated during rotation of the spool 16 by the cam 17. N I

The lower terminal of the lever'20 is pivotally secured at 24 to a slide plate 25 which is slidably supported upon a guide plate 26 suitably supported in 'the chamber .y 19 and having the forward portion ofthe nism, showmg one of the pivoted spring le.

upper edge thereof cut away as indicated at 27.

A substantially rectangular guide frame is adapted to oscillate back and forth inl the frame 28. The.' central portion of one of the side members of the frame! 28 is :formed with an integral upstanding trunnion 31 on which is pivotally secured the spring lever 33, one end of which carries an integral laterally projectin springl latch 34 havmgahorizontal shoul er 35 a apted to engage behind the guide plate 26 to lock the lever 33 inoperative positioi- Thespring catch 34.V is adaptedyto be flexed laterally so as to pass the shoulder 37 defined by thecut- .away portion 27 of the Aguide plate 26 when said latch is engaged, adacent its free end, by the slide plate. 25 during the rotation of the lm receiving spool 16. When the tooth or shoulder 3510i the latch is disengaged.

lever 33,

terminal of said lever out of erative position.

the actuating lever l Vter 13, whereb :5 manually whichpartially embrace the media 4,5 exposure spring latch 3,4 b ind the from the shoulder 37 of the guide plate 26, the adjacent terminal of the spring layer 83 is swung inwardly of the camera casing 10 under the influence of a spring 38 which latter is confined in a holder 39 suitably supported in the chamber 19.

In its normal position, the arm'29 is in rearwardly inclined position, and is loclged in this position by the rear end of the spring as shown in Fig. 2. When the lever 33 is released, coincident with the disengagement of the tooth of the latch 34 4from the shoulder 37, the lever is swung by the spring 38 thereby moving the rear the path of the pivoted airm 29 and permitting the latter to swing forwardly. During the forward movement of the arm 29 the forward extremity of the lever 33 is engaged thereby 20 and moved outwardly, togetherwith the latch 34 and moving the rear beveled extremity 40 of the latter over the guide plate 26 and engaging the tooth 35 behind the guide plate so as to lock the lever 33 in op The pivoted arm 29 is connected intermediate its ends with a cable or other iexible element 41 which is extended forwardly, through the front wall of the chamber 19 and it is connected with (not shown) of the shuty when said shutter is actuated, a forward pull is exerted upon the cable 41 thus taking the arm 29 forwardly therewith. AThe spring latch 34 may be released from engagement with the guide plate 26 by a linger release member 42 which is extended forwardly to the wall of the chamber 19 and is provided at its rear extremity with upstanding lugs 43 portion of the latch 34. f

In use, a film is positioned in the `camera in the usual manner and the first section thereof is moved into position behind the opening of thefcasing 10 by winding-`the film backing strip upon the film receiving spool l1 6. The exposure of the first section of the film is effected by opening the shutter by the cable release device `5014 and simultaneously with the operation of the carriera shutter, a forward longitudinal pull is exerted upon the cable 41 which effects a forward swinging movement .of the arm 29 and during the forward move- 56 ment of said arm, the 'upper extremity there-v of engages the curved forward Aend of the lever 33 and enga ng the tooth 35 of the The slide plate 25 is prefere lv constructed 60 of spring metal so that in case said slide plate is disposed in vthe path of' the spring latch 34 at the time that theshutr is actuated, said slide plate vwill beexed laterally so as to the vtooth 40 of the latch 34- ,65 to engage behind theA guide plate 26. Subide plate 26.

means'1 sequent to an operation of the shutter the cable 41 is released and the arm 29 is moved rearwardly under the influence of the spring 44. During the rearward or return movement of the arm 29 the upper extremity of the latter lex'es the rear extremity of the spring lever 33 which latter, when the upper terminal of the arm passes it, swings outwardly in the path of the arm and locks the latter in its initial position and thus positively locks the shutter 13 against operation, and further preventing a double exposure of anyv one section of the film. The arm Y29 is released when the next section of the film is presented for exposure so as topermit of a subsequent operation of the shutter 13 by the cam 17 which oscillates the lever 20 and moves the slide plate 25 fOIWMdly against the rear extremity `of the latch 34 thus disengaging the said tooth 35 of the latter from the guide plate 26 and permitting the forward extremity of the lever 33 to be swung inwardly under` the influence of the spring 38.

What I claim is 1. A camera including a casing, a film receiving spool su ported in said casin a shutter, means or automatically loc 'ng said shutter against operation subsequent to an operation thereof, a cam on said film receiving spool, and means operable by said cam during the rotation of Said spool to release said locking means to permit operation of the said shutter.; l

2.A camera including a casin a film receiving spool vsupported in sai casingfa shutter, an arm pivotally sup orted in said casing, means independent o said spool to lock said arm in one'position, flexible means eonnectin said arm with said shutter for locking t means controlled by said receiving releasing said locking means.

A camera including a casing, a ceivm carri lock sai means controlled by the cam flange for releasing the locking mea-ns.

camera ipcludin a casing, a film-receiving spool supp'o therein, a`sl1`utter, means to ock said shutter against o eration, a lever pivotally mounted inV sai casing, means carried. by the spooifor actuating sa1dlever,.axidmeans operable by the lever to release the locking means.

-5."A camera including a an 'y arm 'piyotally mounted in said rcasing, means connecting said arm with said shutter a spring-lever adapted to engage Aand spool for film-resiool sipported therein, a cam flange sai spool, a shutter, means to means to lock said lever in engagement with said 4 `6.- A camera `an arm pivotalljl mounteddn saidcasinir.

e latter` against 'operatiom and" Ashutter against operation, and

including a clising, a shutter, *i

casing, a shutter, i

ias

means connecting said arm with said shutter, a spring lever pivotally supported in said casing and adapted to engage and lock said arm 1n inoperative position, means to lock said lever in operative position with relation to said arm, and means for releasing the last-mentioned means.

7. A camera including a casing, a shutter, an arm pivotally mounted in said casing, means connecting said arm with said shutter, a pivoted lever for locking said arm in inoperative position, means normally tending to swing said lever out of engagement with said arm, and means to lock said lever in engagement with said arm.

8. A camera including a casing, a shutter, an arm pivotally mounted in said casing, means connecting said arm with said shutter, a lever pivotally mounted in said easing and movable against Said arm to lock the latter in inoperative position, means normally tending to move said lever out of engagement with said arm, and releasable means for locking said lever in engagement with said arm.

9. A camera including a casing, a shutter, an arm pivotally mounted in said casing, means connecting said arm with said shutter, a flexible lever pivotally supported in said casing adapted to engage and lock the arm in inoperatlve position, means normally tending to move the lever to inoperative position, a film-receiving spool supported in said casing, a cam carried by said spool, and means operable by said cam to release the locking means.

In testimon whereof I aiiix my signature in presence o "two witnesses.

EDWIN W. TUCKER. Witnesses:

GILBERT Mason, C. H. FIN'rnL. 

